Drive Belt: Service and Repair

DRIVE BELTS

REMOVAL

POWER STEERING PUMP/AIR CONDITIONING COMPRESSOR BELT
1. Raise vehicle on hoist.





2. Remove belt splash shield (Fig. 2).





3. Using a wrench, rotate belt tensioner clockwise (Fig. 3) until belt can be removed from power steering pump pulley. Gently, release spring tension on tensioner.
4. Remove belt.

GENERATOR BELT
1. Remove power steering pump/air conditioning compressor drive belt.





2. Loosen pivot bolt, then locking nut and adjusting bolt (Fig. 4).
3. Remove generator belt.

CLEANING
Clean all foreign debris from belt pulley grooves. The belt pulleys must be free of oil, grease, and coolant before installing the drive belt.

INSPECTION
New developments in belt technology allow the belt to greatly increase its life expectancy. Unless the belt exhibits one of the following conditions do not replace the belt.
^ Excessive wear
^ Frayed cords
^ Severe glazing





Poly-V Belt system may develop minor cracks across the ribbed side (due to reverse bending). These minor cracks are considered normal and acceptable. Parallel cracks are not (Fig. 5).

NOTE: Do not use any type of belt dressing or restorer on Poly-V Belts.

INSTALLATION

GENERATOR BELT

NOTE: When installing drive belt onto pulleys, make sure that belt is properly routed and all V-grooves make proper contact with pulley grooves.

1. Install belt and/or adjust belt tension by tightening adjusting bolt. Adjust belt to specification shown in Belt Tension Chart.
2. Check belt tension using Special Tool 8371 -Belt Tension Gauge Adapter, and the DRB III using the following procedures:

WARNING: DO NOT CHECK BELT TENSION WITH ENGINE RUNNING.

a. Connect 8371 to the DRB III following the instructions provided in tool kit.





b. Place end of microphone probe approximately 2.54 cm (1 in.) from belt at one of the belt center span locations shown in (Fig. 6).
c. Pluck the belt a minimum of 3 times. (Use your finger or other suitable object)
d. The frequency of the belt in hertz (Hz) will display on DRBIII screen.
e. Adjust belt to obtain proper frequency (tension). Refer to the belt tension chart for specifications.
3. Tighten pivot bolt to 54 Nm (40 ft. lbs.) and locking nut to 54 Nm (40 ft. lbs.) (Fig. 4).
4. Install power steering pump/air conditioning compressor drive belt.





BELT TENSION CHART

POWER STEERING PUMP/AIR CONDITIONING

COMPRESSOR BELT

NOTE: When installing drive belt onto pulleys, make sure that belt is properly routed and all V-grooves make proper contact with pulley grooves.

1. Install belt over all pulleys except for the power steering pump pulley.
2. Using a wrench, rotate belt tensioner clockwise (Fig. 3) until belt can be installed onto power steering pump pulley. Release spring tension onto belt.





3. After belt is installed, inspect belt length indicator marks (Fig. 7). The indicator mark should be within the minimum belt length and maximum belt length marks. On a new belt, the indicator mark should align approximately with the nominal belt length mark.
4. Install belt splash shield (Fig. 2).
5. Lower vehicle.